Lukaku has only scored four goals in 14 matches for United this season.

The last of those came in the 2-1 win at Watford on 15 September.

Following the previous Champions League game against Juventus, two weeks ago, Mourinho said that the Belgian had been lacking in confidence but that “the goals will arrive”. He was relegated to the bench for the following match, against the Toffees.

Meanwhile, right-back Antonio Valencia has returned to the squad for Wednesday’s encounter having not played since the start of October following mouth surgery.

Juventus forward Mario Mandzukic is fit again after an ankle problem ruled him out of the fixture against Cagliari at the weekend.